Boiler peak regulation method of W flame boiler for flexible peak regulation of double-layer coal bunker

A coal bunker and peak shaving technology, which is applied in the field of W flame boiler and boiler peak shaving, and boiler peak shaving of W flame boiler, can solve the problems of difficult peak shaving technology, difficulty in meeting the needs of flexible peak shaving and deep peak shaving, etc. To achieve the effect of improving the low-load stable combustion ability

Active Publication Date: 2022-01-04
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that very few existing W-flame boilers can achieve 30% ultra-low load stable combustion, the peak-shaving technology is difficult, and it is diffi

Method used

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  • Boiler peak regulation method of W flame boiler for flexible peak regulation of double-layer coal bunker
  • Boiler peak regulation method of W flame boiler for flexible peak regulation of double-layer coal bunker

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specific Embodiment approach 1

[0019] Specific implementation mode one: combine figure 1 and figure 2 To illustrate this embodiment, the W-flame boiler for flexible peak regulation in the double-layer coal bunker includes a W-flame boiler combustion system and a coal bunker system. The W-flame boiler combustion system includes a furnace 7 and two sets of double-cyclone burners 8, The coal bunker system includes coal blending bins 1-2 and double-layer coal bunkers; a set of double cyclone burners 8 is installed on the front arch of the furnace 7, and another set of double cyclone burners 8 is installed on the back arch of the furnace 7 , the outlet of the exhaust gas pipeline 9 on each group of double-cyclone tube burners 8 is connected with the lower furnace of the furnace 7, the double-layer coal bunker system is connected with each group of double-cyclone tube burners 8, and the coal blending bunker 1-2 is connected with each group of double-cyclone tube burners. The exhaust gas pipeline 9 on the cyclon...

specific Embodiment approach 2

[0020] Specific implementation mode two: combination figure 1 and figure 2 Describe this embodiment, the double-layer coal bunker described in this embodiment is a W flame boiler for flexible peak regulation, the double-layer coal bunker includes two main coal bunkers 1, two inner layer coal blending bunkers 2 and two blenders 4 ; Each inner layer coal blending bunker 2 is installed in a main coal bunker 1, and each inner layer coal blending bunker 2 and the external main coal bunker 1 are all communicated with a blender 4, and each blender 4 is connected with a The group of double cyclone combustors 8 are connected. The low-quality coal output from the main coal bunker 1 and the high-quality coal output from the inner coal blending bunker 2 are uniformly mixed by the blender 4 and input to the coal mill 5, and then input to the double cyclone burner 8 through the coal delivery pipeline 6 and finally supplied to the furnace combustion. Other compositions and connection met...

specific Embodiment approach 3

[0022] Specific implementation mode three: combination figure 1 and figure 2 Describe the present embodiment, the double-layer coal bunker described in the present embodiment carries out the W flame boiler of flexible peak adjustment, it also includes a plurality of coal pulverizers 5, each blender 4 and the output between the double cyclone tube burner 8 A coal mill 5 is installed in the coal pipeline 6, and a coal mill 5 is installed in the coal pipeline 6 between each coal blending bunker 1-2 and the exhaust gas pipeline 9. Other compositions and connection methods are the same as those in the second embodiment.

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Abstract

The invention discloses a boiler peak regulation method of a W flame boiler for flexible peak regulation of a double-layer coal bunker, relates to the W flame boiler for flexible peak regulation and the boiler peak regulation method, and aims to solve the problems that a very few of existing W flame boilers can realize 30% ultra-low load stable combustion, the difficulty of the peak regulation technology is high, and the requirements for flexible peak regulation and deep peak regulation of a current electric environment can be hardly met. The W flame boiler comprises a W flame boiler combustion system and a coal bunker system, the W flame boiler combustion system comprises a hearth and two sets of double-cyclone-cylinder combustors, and the coal bunker system comprises coal blending bunkers and the double-layer coal bunker. The method is realized according to the following steps that step 1, preparation work is conducted, wherein inferior anthracite and meagre coal are daily stored in main coal bunkers and coal blending bunkers, and high-quality anthracite is daily stored in inner-layer coal blending bunkers; step 2, combustion work is conducted, wherein the W flame boiler is started to work; and step 3, peak regulation work is conducted, wherein peak regulation work is set according to requirements. The boiler peak regulation method is used in the field of boiler combustion.

Description

technical field [0001] The invention relates to a W flame boiler with flexible peak regulation and a boiler peak regulation method, in particular to a boiler peak regulation method for a W flame boiler with double-layer coal bunkers for flexible peak regulation, and belongs to the field of boilers. Background technique [0002] In recent years, with the development of clean and renewable energy such as wind power and hydropower, China's power system has undergone tremendous changes. Renewable energy generation capacity is taking an increasing share in the grid. However, due to the limitation of unstable output of renewable energy power generation, it brings great challenges to the regulation ability of the power system. Serious wind curtailment problems have emerged in some areas, and consumption has become a key factor restricting the development of new energy sources such as wind power. Therefore, in order to adapt to the rapid development of renewable energy, improve th...

Claims

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Application Information

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IPC IPC(8): F23C5/08F23D1/02F23K3/02F23K1/00B02C21/00
CPCF23C5/08F23D1/02F23K3/02F23K1/00B02C21/00
Inventor 杜贺李争起张鸣镝郑玉陈智超宋健
Owner HARBIN INST OF TECH
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